import numpy
import numpy as np

data=np.array([2,5,6,8,3])#一维数组
print(data)
data1=np.array([[2,5,6,8,3],np.arange(5)])#二维数组
print(data1)
data2=np.array([[1,2,3,4],[5,6,7,8]])
print(data2)

